Electrical Industry Resources

These industry associations provide helpful resources and tools on their websites.

Electrical Power Systems in Buildings

A basic discussion of electrical systems in small, medium, and large buildings.

Emergency and Standby Power Systems for Buildings

A discussion of the types of emergency and standby power systems for buildings - from small homes to large critical services. Also covers components of the systems, including backup generators, UPS, and redundancy.

Light Fixture (Luminaire) Types

Graphic diagram showing the different kinds/types of light fixtures (luminaires).

Light Fixture (Luminaire) Components

A diagram and description showing the components of a light fixture, also known as a luminaire.

Recommended Lighting Levels in Buildings

This article covers recommended light levels for a variety of spaces as well as information about lighting power density, which affects sustainability initiatives.

Light Distribution Curves

Information on how to read candlepower or light distribution curves that are provided by lamp and luminaire manufacturers.

Electrical Conduit Types

This article covers a number of different types of conduit, including plastic, metal, rigid, and flexible. The advantages and drawbacks of each type are discussed as well as when each type should be used.

Wire Size (Gauge)

American Wire Gauge (AWG) is a measurement of the size of wire often used in North America. This article has a chart listing the AWG size and the diameter in inches.

Ground Pin Up or Ground Pin Down?

A discussion of whether a three-prong outlet should be mounted with the ground pin up or down.

Electrical Faceplate Types and Dimensions

Covers standard electrical faceplate types and dimensions.

NEMA Enclosure Types

Descriptions of the different types of National Electrical Manufacturers Association (NEMA) enclosures and the environments where they can safely be used.

Electrical One-Line Diagram

Electrical one-line diagrams are a basic way of describing the connections between items in a complex electrical system or component. They are also used in other trades. This article provides a description and example of a single-line diagram.
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